DE3670712D1 - LOW BIT RATE SPEECH CODING METHOD USING A MULTI-PULSE EXCITATION SIGNAL. - Google Patents

LOW BIT RATE SPEECH CODING METHOD USING A MULTI-PULSE EXCITATION SIGNAL.

Info

Publication number
DE3670712D1
DE3670712D1 DE8686103770T DE3670712T DE3670712D1 DE 3670712 D1 DE3670712 D1 DE 3670712D1 DE 8686103770 T DE8686103770 T DE 8686103770T DE 3670712 T DE3670712 T DE 3670712T DE 3670712 D1 DE3670712 D1 DE 3670712D1
Authority
DE
Germany
Prior art keywords
bit rate
excitation signal
coding method
low bit
speech coding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE8686103770T
Other languages
German (de)
Inventor
Jean-Paul Lefevre
Olivier Passien
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel CIT SA filed Critical Alcatel CIT SA
Application granted granted Critical
Publication of DE3670712D1 publication Critical patent/DE3670712D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
DE8686103770T 1985-03-22 1986-03-20 LOW BIT RATE SPEECH CODING METHOD USING A MULTI-PULSE EXCITATION SIGNAL. Expired - Fee Related DE3670712D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8504304A FR2579356B1 (en) 1985-03-22 1985-03-22 LOW-THROUGHPUT CODING METHOD OF MULTI-PULSE EXCITATION SIGNAL SPEECH

Publications (1)

Publication Number Publication Date
DE3670712D1 true DE3670712D1 (en) 1990-05-31

Family

ID=9317484

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686103770T Expired - Fee Related DE3670712D1 (en) 1985-03-22 1986-03-20 LOW BIT RATE SPEECH CODING METHOD USING A MULTI-PULSE EXCITATION SIGNAL.

Country Status (6)

Country Link
US (1) US4847905A (en)
EP (1) EP0195441B1 (en)
CA (1) CA1241117A (en)
DE (1) DE3670712D1 (en)
DK (1) DK126986A (en)
FR (1) FR2579356B1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1337217C (en) * 1987-08-28 1995-10-03 Daniel Kenneth Freeman Speech coding
USRE35057E (en) * 1987-08-28 1995-10-10 British Telecommunications Public Limited Company Speech coding using sparse vector codebook and cyclic shift techniques
SE463691B (en) * 1989-05-11 1991-01-07 Ericsson Telefon Ab L M PROCEDURE TO DEPLOY EXCITATION PULSE FOR A LINEAR PREDICTIVE ENCODER (LPC) WORKING ON THE MULTIPULAR PRINCIPLE
JP2940005B2 (en) * 1989-07-20 1999-08-25 日本電気株式会社 Audio coding device
US5673364A (en) * 1993-12-01 1997-09-30 The Dsp Group Ltd. System and method for compression and decompression of audio signals
AU696092B2 (en) * 1995-01-12 1998-09-03 Digital Voice Systems, Inc. Estimation of excitation parameters
US6012025A (en) * 1998-01-28 2000-01-04 Nokia Mobile Phones Limited Audio coding method and apparatus using backward adaptive prediction
US5963897A (en) * 1998-02-27 1999-10-05 Lernout & Hauspie Speech Products N.V. Apparatus and method for hybrid excited linear prediction speech encoding
DE69931641T2 (en) * 1998-09-11 2006-10-05 Motorola, Inc., Schaumburg Method for coding information signals
EP2009623A1 (en) * 2007-06-27 2008-12-31 Nokia Siemens Networks Oy Speech coding
US8036886B2 (en) * 2006-12-22 2011-10-11 Digital Voice Systems, Inc. Estimation of pulsed speech model parameters
US11270714B2 (en) 2020-01-08 2022-03-08 Digital Voice Systems, Inc. Speech coding using time-varying interpolation
GB2596821A (en) 2020-07-07 2022-01-12 Validsoft Ltd Computer-generated speech detection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133976A (en) * 1978-04-07 1979-01-09 Bell Telephone Laboratories, Incorporated Predictive speech signal coding with reduced noise effects
US4472832A (en) * 1981-12-01 1984-09-18 At&T Bell Laboratories Digital speech coder
US4720861A (en) * 1985-12-24 1988-01-19 Itt Defense Communications A Division Of Itt Corporation Digital speech coding circuit

Also Published As

Publication number Publication date
CA1241117A (en) 1988-08-23
US4847905A (en) 1989-07-11
FR2579356A1 (en) 1986-09-26
EP0195441A1 (en) 1986-09-24
DK126986A (en) 1986-09-23
EP0195441B1 (en) 1990-04-25
DK126986D0 (en) 1986-03-19
FR2579356B1 (en) 1987-05-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee